I volunteer for a small Non Profit Organization and someone just donated a fairly decent computer to them (Powerspec 5500 - 2G memory, 1.8 MHz). I installed the Windows 7 Beta version on it with no problem. The computer has 6 USB ports - and here is the problem. Every flashdrive, external HD, (even a Zipdrive) gives me the same error message: There is a problem with this device, please remove.....etc. Strangely enough, it accepts the mouse and keyboard. The keyboard has 2 built-in USB ports, and they will accept the flash drives but then I get the message that "this device will perform faster in a USB 2 port". The keyboard is USB2, but seems to act as a USB 1 hub. Where do I need to start trouble shooting?